Ore cooling apparatus



June 16, 1931, H, ARTLEY ET AL 1,810,562

ORE COOLING APPARATUS Filed Dec. 2, 1929 INVENTORS. Henry Jflartigfl Frederic/i B507; my

ATTORNEYS Patented June 16, 1931 UNWEE STATES Paras? easier.

HENRY J. HARTLEY, 0F HASTINGSi-ON-HUDSON, FREDERICK SCHILLING, OF 7 FLUSHING, NEW YORK, .ASSIGNORS T0 NICHOLS COPPER COMPANY, OF NEKV YORK,

N. Y5 A CORPORATION OF NEW YORK can COOLING ArrAn 'rtrs Application filed December 2,1929. Serial No. 410,970; I

This invention relates to improvements in furnace constructions and tomeans for cooling ore or other material as discharged from furnaces or other'treating apparatus.

The objects of this invention include the provision of aninexpensive and highly efii-' cient cooling device of the class above indicated. In preferred examples of the invention, a cooling fluid is passed through a'plui features and advantages will clearly appear from the detailed description given below taken in connection with the accompanying drawings which form a part of this specification and illustrate merely by way of ex ample various embodiments of the apparatus.

The invention consists in such novel features, arrangements and comblnatlons of parts as may be shown and described in corn nection with the devices herein disclosed by.

way of example, as illustrative of preferred embodiments, together with such novel methods as may also be described herein.

Fig. 1 shows the lowersection of arotary rabble furnace with one form of the invention applied thereto; v

Fig. 2 is a top plan view of the lower hearth showing this form of the invention;

Fig. 3 shows another form of the invention; w

and

Fig. 4 shows an auxiliary construction that from the fan through theheader to which the maybe employed with either form but is shown in connection with the first form.

This invention has been illustrated in connection with a furnace comprising superposed hearths extending inwardly from an outer cylindrical wall 6 and providing roasting spaces between the hearths which spaces are traversed by rabble arms 7 supported on the usual central double walled'shaft 8. Air is forced from a fan through'a cooling pipe 9,

through the central passage of the shaft into the-rabble arms from which it issuesinto the annular passage ofthe shaft surrounding the central passage.

Inthe drawings, the lower hearth 10 is shown as provided with a vertical discharg- 1 ing orifice. a Secured to this lower hearth in any suitable manner is a frame or hopper 11, Figs. 1 and 4, carrying a series of conduits.

or pipes '12conne'cted-through a header 13 with the pipe 9 leading from the fan- The header may be detachably mounted and the pipes '12 may be secured-in the header and loosely mounted and fitted in the frame for the purpose ofcleaning or replacement.

I These pipes may be arranged in tiers and the pipes Ofadjacent tiers are preferably staggered as shown, in Figs. 1 and 4. In these figures the pipes 12 are arranged tangentially and circumferentially of the hearth in the line of travel of the ore as it falls through the discharge orifice and the ore is brokenup or separatedduring its discharge to providefor cooling of substantially every particlezof ore. v a

In the arrangement shown in Fig. '3 the staggered pipes 15 are arranged substantial;

ly radially of-t'he hearth or transversely of the path oftravel of the discharging ore.

Itm'ay be desirable to lower the'temperature still more, in-which event an auxiliary frame or hopper 16, Fig. 4, containing cooling pipes 17 maybe detachably' secured to the upper frame 11 as shown.,-

The air may be forced through these pipes downwardly as shown and thelower frame or hopper 1 6, is preferablyv flared toward its ends as shown to provide for a scattered discharge as the material leaves the frames or hoppers.

If desired, the pipes in either or both of the frames may be connected in continuous fashion with the air entering the system preferably through the lower pipes.

The air discharged from these pipes may be blown into the atmosphere or conducted by suitable means into one or more of the hearth spaces where special temperature conditioning may be desirable.

As shown in Fig. 4 the speed of discharge may be controlled by a cut-off plate 18 which tends to check the flow of the material through the device to any desired extent.

With the above described constructions, it will be observed that as the rabble arms revolve, the rabble teeth will gradually discharge the treated ore over the angularly directed edge of the discharge opening (see Figs. 2 and 3) so that the ore will be scattered throughout the cross-sectional area of the discharge opening ancl any large lumps will strike against the cooling pipes and become more finely divided. With the staggered arrangement of the cooling pipes in a plurality of tiers it will be apparent that substantially all ofthe particles of the mass will come into contact with one or more of the cooling pipes to insure uniform cooling.

It is apparent that this invention may be used not only to cool material discharged from a furnace as shown, but also to cool'an'y material caused to move through it by any suitable means.

While we have described our improvethe cooling means, and means for confining the material as it moves past the cooling means, said confining means being constructu ed to permit the scattering eflect produced by the cooling means.

In testimony whereof we have signed our names to this specification.

HENRY J. HARTLEY. I FREDERICK B. SCHILLING.

ments in great-detail and with respect to cerr tain preferred forms thereof, we do not de sire to be limited to such forms or details, since many changes and modlfications may be made and the improvements embodied in widely different forms without departing from the spirit and scope of the-invention in its broader aspects. Hence, we desire to cover all modifications and forms coming within the language of any one or more of the appended claims. l

hat we claim as new and-de's'ireto secure by Letters Patent is: I 7

1 The combination with an ore: roasting furnace comprising a hearth provided with an ore discharge orifice; of a cooling device secured belowsaid orifice comprising a frame provided with outwardly flaringsides, cooling pipes supported in said sides, a second cooling device comprising a frame secured to said first mentioned frame and provided'with sides converging inwardly from the ends of the frame, and a series of cooling pipes supported in said sides. 1 i

2. The combination with means for causing material to drop by gravity; of cooling means arranged in the path of the moving material to cause a scattered discharge of the 

